Individual Calculations July 2022
 Walder, Michael  Total change: -12.20  Rating chartPersonal card
 2022 Calchess Senior State Championship Berkeley, California USA 2022-06-17
RcRownchangeKK*chgGame
 1869 1956 3.50 5 0.57 20 11.40 
  Adkins, Rico 1653 USA1.0010.14202.80 
  Soltani, Mohammad 1556  * USA1.0010.08201.60 
  Winslow, Elliott m2115 USA0.5010.21204.20 
  Taylor, Timothy W m2145 USA0.001-0.2520-5.00 
  Nash, Damian 1878 USA1.0010.39207.80 
 * Rating difference of more than 400. Please read more at FIDE Handbook

Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change)
 
 21st Addison Memorial Championship San Francisco, California USA 2022-06-25
RcRownchangeKK*chgGame
 1772 1956 1.00 3 -1.18 20 -23.60 
  Stafford, Adam 1794 USA0.501-0.2120-4.20 
  Kelly, Sean 1868 USA0.501-0.1220-2.40 
  Achuthan, Aryan 1655 USA0.001-0.8520-17.00 

Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change)
 

 

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